You're essentially treating each article as if it's an asset. Users are allowed to go long or short on the article, depending on their prediction about its fina

You're essentially treating each article as if it's an asset. Users are allowed to go long or short on the article, depending on their prediction about its final karma value. Are people then allowed to exit their positions? Can I place a stop loss? Can I upvote this article, but when it gets 5 down votes decide that I should exit it and go short? If I can't exit my position, then what is the incentive for me to ever be the first person to vote on an article? I think it's intuitively obvious to everyone that an article with 20 up votes will not start getting down voted all of a sudden. If I were to guess, I'd say that after 5 or so up votes, you're 90% or more to see a higher close; after 20, it's probably more than 99%. However, at 0 votes, you're probably close to 50/50 (again, just guessing based on experience). If you can't exit, then your risk of ruin is way too high to make initial voting worth it. If you can exit, then it becomes easy to game the system by switching sides quickly. Also, what about the ability of people to submit really crappy articles on a dummy account and then down vote them on a main account in order to build karma?